Experimental Study Of Photoelectric Effect
Chapter Name : Dual Nature Of Radiation And Matter |
Sub Topic Code : 101_12_11_04_03 |
Topic Name : Experimental Study Of Photoelectric Effect |
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Sub Topic Name : Effect Of Potential On Photoelectric Current |
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Introduction
For a particular frequency of incident radiation, the minimum negative (retarding) potential V0 given to the plate A for which the photocurrent stops or becomes zero is called the cut-off or stopping potential.
Pre-Requisites:
Photocurrent
Activity:
photocurrent spectroscopy
Real Life Question:
What is Photocurrent ?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Photoelectric effect | Photocurrent is the current that flows through a photosensitive device, such as a photodiode, as the result of exposure to radiant power. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Photocurrent | We use photocurrent spectroscopy to study InP nanowire Ohmic devices having Zincblende. |
Real life uses :
We use photocurrent spectroscopy to study InP nanowire Ohmic devices having Zincblende.
Places to visit :
Physics Lab
Practical examples around us
| Examples | Explainations |
|---|---|
| photocurrent spectroscopy | We use photocurrent spectroscopy to study InP. nanowire Ohmic devices having Zincblende. |
What you learn in Theory:
Effect of potential on photoelectric current
What you learn in Practice:
For a particular frequency of incident radiation, the minimum negative (retarding) potential V0 given to the plate A for which the photocurrent stops or becomes zero is called the cut-off or stopping potential.